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单词 hypocycloid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
hy•po•cy•cloid  (hī′pə sīkloid),USA pronunciation n. [Geom.]
  1. Mathematicsa curve generated by the motion of a point on the circumference of a circle that rolls internally, without slipping, on a given circle.
  • hypo- + cycloid 1835–45
hy′po•cy•cloidal, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
hypocycloid /ˌhaɪpəˈsaɪklɔɪd/ n
  1. a curve described by a point on the circumference of a circle as the circle rolls around the inside of a fixed coplanar circle

ˌhypocyˈcloidal adj
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